Liz Cheney addresses the Conservative Political Action Conference in Washington in 2010.

Liz Cheney, the older daughter of former vice president Richard B. Cheney, is running for Wyoming’s sole seat in the House of Representatives, according to federal campaign documents she filed Friday establishing her candidacy.

The filing ends months of speculation about whether and when Cheney would throw her hat into the ring for Wyoming’s House seat, which will be vacated by Rep. Cynthia M. Lummis (R-Wyo.) at the end of this congressional term.

Cheney could not be reached for comment immediately; the Associated Press reported that a formal announcement of a campaign launch will come Monday.

It isn’t the first time Cheney has made a bid to join Congress. In 2013, she launched a short-lived Senate campaign to unseat Sen. Mike Enzi (R-Wyo.). But her candidacy faltered amid accusations that despite being the scion of one of Wyoming’s best-known politicians and purchasing a home in Jackson Hole in 2012, she had barely spent any time living in the state.

During the campaign, the former vice president’s oldest daughter also made headlines for a very public spat with her younger sister, Mary Cheney, over her opposition to same-sex marriage. Mary Cheney, who is a lesbian, and her wife, Heather Poe, criticized Liz Cheney on Facebook for saying on Fox News that she disagreed with her sister about gay marriage. The Cheney parents came to Liz’s defense.

Meanwhile, Cheney’s choice to challenge Enzi caused noticeable strife in the usually tight-knit Wyoming GOP, and with almost no support from fellow state Republicans, she bowed out of the race after just five tumultuous months in early 2014, citing unspecified family health issues.

Members of the Wyoming congressional delegation did not immediately respond to requests for comment on Cheney’s new House candidacy.

Since her failed Senate bid, Cheney has maintained residence in Jackson Hole, a well-known resort town close to Grand Teton and Yellowstone national parks. Although Cheney has name recognition and has resolved some problems about her residency heading into the 2016 House race, she is entering a contest that is already well underway. Eight other candidates are running to replace Lummis, and the Republicans already had their first debate on Jan. 23. The primary is scheduled for August.